The Bull Terrier or English Bull Terrier is a breed of dog in the terrier family. They are known for their large, egg-shaped head, small triangular eyes and their “jaunty gait.” Their temperament has been described as generally fun-loving, active and clownish. Bull terriers have appeared as characters in many cartoons, books, movies, and advertisements, perhaps most famously as party loving Spuds MacKenzie in Budweiser beer commercials in the late 1980s, and more recently as Bullseye the Target dog.Appearance The Bull Terrier’s most recognizable feature is its head, described as ‘egg shaped’ when viewed from the front, almost flat at the top, with a Roman muzzle sloping evenly down to the end of the nose with no stop. The unique triangle-shaped eyes are small, dark, and deep-set. The body is full and round, while the shoulders are robust and muscular and the tail is carried horizontally. It walks with a jaunty gait, and is popularly known as the ‘gatorhead of the canine race’.

There is no designated height or weight for the breed, but the average is, Height: 51–61 cm (20-24 inches), Weight: 20–38 kg (44-85 pounds) The Bull Terrier is the only recognized breed that has triangle-shaped eyes (info from Wikipedia).